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Do black holes have hair?

A new hypothesis on the nature of these celestial bodies

Black holes may be less simple and "clean" than how the most authoritative theoretical model describes them. This is what a group of researchers based at the International School of Advanced Studies (SISSA), Trieste, and IST, Lisbon, claims in a new article appeared in Physical Review Letters.

According to the scientists' calculations, these celestial bodies may actually have "hair".